Genome size variation in Begonia

Genome Génome / Conseil National De Recherches Canada
A DewitteErik Van Bockstaele

Abstract

The genome sizes of a Begonia collection comprising 37 species and 23 hybrids of African, Asiatic, Middle American, and South American origin were screened using flow cytometry. Within the collection, 1C values varied between 0.23 and 1.46 pg DNA. Genome sizes were, in most cases, not positively correlated with chromosome number, but with pollen size. A 12-fold difference in mean chromosome size was found between the genotypes with the largest and smallest chromosomes. In general, chromosomes from South American genotypes were smaller than chromosomes of African, Asian, or Middle American genotypes, except for B. boliviensis and B. pearcei. Cytological chromosome studies in different genotypes showed variable chromosome numbers, length, width, and total chromosome volume, which confirmed the diversity in genome size. Large secondary constrictions were present in several investigated genotypes. These data show that chromosome number and structure exhibit a great deal of variation within the genus Begonia, and likely help to explain the large number of taxa found within the genus.

References

Jan 1, 1993·Biology of the Cell·D Marie, S C Brown
Jan 24, 2003·Cytometry. Part a : the Journal of the International Society for Analytical Cytology·J DolezelJ Greilhuber
Feb 13, 2003·Journal of Plant Research·Kazuo Oginuma, Ching-I Peng
Dec 15, 2004·Annals of Botany·Jaroslav Dolezel, Jan Bartos
Dec 15, 2004·Annals of Botany·Jeffrey L BennetzenKatrien M Devos
Aug 27, 2005·Genome Génome / Conseil National De Recherches Canada·A RicrochS Nadot

❮ Previous
Next ❯

Citations

Feb 18, 2011·Genome Génome / Conseil National De Recherches Canada·Shaun R BroderickDale T Lindgren
Aug 27, 2013·Methods : a Companion to Methods in Enzymology·Michelle T PaulsenMats Ljungman
Oct 22, 2013·Methods : a Companion to Methods in Enzymology·Saima Shahid, Michael J Axtell
Oct 23, 2013·Methods : a Companion to Methods in Enzymology·Paul RyvkinLi-San Wang
Jul 23, 2013·Methods : a Companion to Methods in Enzymology·Naoto ImamachiNobuyoshi Akimitsu
Apr 18, 2014·Current Opinion in Infectious Diseases·Asuncion MejiasOctavio Ramilo
Mar 25, 2014·Archives of Biochemistry and Biophysics·David C MiklesAmjad Farooq
Jul 4, 2015·Comparative Cytogenetics·Prabhu Shankar LakshmananLudmila Khrustaleva
Nov 22, 2017·Current Microbiology·Ana M L CorreiaAndre Rodrigues

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved